Automatic Regulator for Pneumatic Flues
Description:
Patent for a regulated valve to automatically maintain air pressure in a pneumatic conveyor flue. Excessive air pressure causes a secondary valve to open and vent the pressure while at the same time impeding air flow downstream.
Date:
May 28, 1901
Creator:
Caffey, Charles B.
Item Type:
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Patent
Partner:
UNT Libraries Government Documents Department